微束等离子氩弧焊及激光焊焊接牙科纯钛机械性能比较
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江苏省教育厅科技项目(03KJD320147)


Study on mechanical properties of the plasma- and laser-welded pure titaniums
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    目的:比较微束等离子氩弧焊及激光焊接牙科纯钛的机械性能,为微束等离子氩弧焊接纯钛在临床应用提供依据。方法:采用万能试验机测试焊接区的拉伸强度,金相显微镜观察焊接区的金相变化,并测量焊接区的显微硬度。X射线能谱仪测定焊缝区元素组成。结果:等离子氩弧焊接纯钛拉伸强度高于激光焊接,且焊缝显微硬度值与母材接近。两类焊缝均不改变元素的化学组成。结论:微束等离子氩弧焊接纯钛的机械性能优于激光焊接,用于牙科焊接,符合临床需要。

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    Objective:To study the mechanical properties of the plasma- and laser-welded pure titaniums. Methods:Tensile strength was measured with instron testing machine and metallographic change was observed with metallographic microscope. Micro-hardness was also detected. The chemical composition was detected with EDAX. Results:Tensile strength and micro-hardness of plasma-welded titanium had no difference from the control group. The two kinds of joining did not change the chemical composition. Conclusion:Plasma welding can improve mechanical properties and might be suitable for pure titanium welding in restorative dentistry.

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徐 晶,吴凤鸣,庞 敏,袁秀祥,景建龙,丁 晨,成志富,徐越兰.微束等离子氩弧焊及激光焊焊接牙科纯钛机械性能比较[J].南京医科大学学报(自然科学版),2007,(2):118-121

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  • 收稿日期:2006-07-06
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